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    張玉秋  陳云霞
    (天津大學(xué)土木系  300072)

[提要]  根據(jù)鋼筋砼異形截面雙向偏心受壓柱的工作機(jī)理，編制了正截面承載力分析的數(shù)值迭代法計(jì)算機(jī)程序，并用它對(duì)T形.L形截面各1 024根柱進(jìn)行了計(jì)算分析，總結(jié)了這兩種截面雙向偏心受壓柱正截面承載力的變化規(guī)律，在此基礎(chǔ)上提出雙向偏心受壓柱正截面承載力的簡(jiǎn)化計(jì)算公式，并給出了利用此公式進(jìn)行T形、L形正截面設(shè)計(jì)的計(jì)算機(jī)程序，可用于實(shí)際工程設(shè)計(jì)。
[關(guān)鍵詞]  鋼筋砼異形柱 承載力  簡(jiǎn)化計(jì)算方法 迭代法

Based on the behavior of R.C. special-shaped columns subjected to biaxially eccentric loading, a computer program for exact analysis of load-bearing capacity on the basis of numerical iteration method is compiled. By using this computer program, 1 024 T and L shaped columns analyses are achieved, and then the variation regularity of load-bearing, capacity for T and L shaped columns is summarized. A simpMed calculation method for determination of load-bearing capacity of T and L shaped columns is proposed, and the corresponding calculation program, which is of practical engineering value, is compiled.
Keywords: R.C.special-shaped column;  load-bearing capacity;  simpMed calculation method;  numerical iteration method